Monetarium vs Unique Auctions
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Monetarium
This app connects users with an auction house specializing in rare banknotes and coins. It provides information on upcoming auctions and services for grading collectibles.
- Banknote and coin auctions
- PMG, NGC, PCGS grading authorization
- Information on annual auctions
- Collectible appraisal services
- Singapore-based auction house
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Monetarium, located in Singapore, was established in 1995. The auction house regularly conducts auctions every year since 2008. We specialize in banknotes and coins and we are also an authorized of PMG, NGC and PCGS grading.
Unique Auctions
This app connects users with a numismatic auction company for professional evaluations, exhibitions, and auctions of coins and banknotes. It facilitates a global network of collectors and business partners.
- Professional numismatic evaluation
- Exhibitions and auctions
- Global collector network
- Numismatic society memberships
- Numismatic company subsidiary
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Unique Auctions is owned by one of the main numismatic auction company in Malaysia, Unique World Coin Sdn.Bhd. It is a subsidiary of Unique Discovery (Group) Sdn Bhd which founded in 2013 that provide professional evaluation service, exhibitions and auction. Our business partners are from Malaysia, Singapore, Brunei, Indonesia, China, Hong Kong, Taiwan. We are also a member of Malaysia Numismatic Collector Society, International Bank Note Society, Hong Kong Numismatic Society, Associacao Numismatica De Macau. Through the years, we have build relationships with collectors and business partners from different countries forming a global network and also gain the reputation for good quality of service.
Screenshots
Verdict
The clearest difference is update cadence: Monetarium at every 4 months against Unique Auctions's every 24 months. Monetarium also leads on iOS requirement (13.0 vs 16.0). On price, rating, ratings volume and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Monetarium against 5.0 for Unique Auctions. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
Monetarium ships an update every 4 months, Unique Auctions every 24 months. The most recent releases landed on June 1, 2026 and July 7, 2026 respectively.
| Parameter | Monetarium | Unique Auctions |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 | 1 |
| Update frequency | Every 4 months — better | Every 24 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 75 MB | 135 MB |
| Age rating | 9+ | 9+ |
| Developer | Monetarium Singapore Pte Ltd | Unique World Coin Sdn. Bhd |
In-app purchases
Monetarium
No in-app purchases
Unique Auctions
No in-app purchases
Questions
Is Monetarium free?
Is Unique Auctions free?
Which has better reviews, Monetarium or Unique Auctions?
Do Monetarium or Unique Auctions have ads?
Which is updated more often, Monetarium or Unique Auctions?
Other comparisons
